PMID: 9550025Jun 1, 1997Paper

Hydroxyl radical activity in thermo-catalytically bleached root-filled teeth

Endodontics & Dental Traumatology
S W DahlstromT E Bridges

Abstract

Intra-coronal bleaching of root-filled teeth has been associated with invasive cervical root resorption. It is considered that during bleaching hydrogen peroxide diffuses through the tooth structure into the cervical periodontium, resulting in periodontal tissue destruction and initiating a resorptive process. Hydrogen peroxide is capable of generating hydroxyl radical, an oxygen-derived free radical, in the presence of ferrous salts. Hydroxyl radicals are extremely reactive and have been shown to degrade components of connective tissue, particularly collagen and hyaluronic acid. The aim of the present study was to determine whether hydroxyl radicals are generated during the bleaching of root-filled teeth which have been discoloured by blood. Forty extracted human premolar teeth were root-filled with gutta-percha and AH26 sealer cement. Twenty of the teeth were experimentally discoloured by blood. All teeth were then thermo-catalytically bleached using 30% hydrogen peroxide while tooth roots were seated in a test solution of sodium salicylate. Hydroxyl radical generation was determined by the detection of reaction products of this radical with salicylate using high performance liquid chromatography with electrochemical detectio...Continue Reading

References

Nov 1, 1979·Journal of Endodontics·G W Harrington, E Natkin
Jan 1, 1987·Advances in Human Genetics·J T Curnutte, B M Babior
Nov 1, 1986·Journal of Periodontology·S A WeitzmanG Shklar
Oct 1, 1988·Carcinogenesis·J T ZelikoffT G Rossman
Feb 1, 1988·Endodontics & Dental Traumatology·S FriedmanI Heling
Oct 15, 1984·FEBS Letters·S F CurranR A Berg
Feb 1, 1982·Journal of Endodontics·W F Freccia, D D Peters
Apr 1, 1994·Australian Dental Journal·G S HeithersayP D Marin
Jun 1, 1997·Endodontics & Dental Traumatology·P D MarinG S Heithersay

❮ Previous
Next ❯

Citations

Jul 10, 1999·Journal of Dentistry·C J WhittersD Wood
Sep 26, 2002·Journal of Clinical Periodontology·L BergmansP Lambrechts
Apr 29, 1998·Endodontics & Dental Traumatology·P D MarinT E Bridges
Jun 20, 2001·Australian Endodontic Journal : the Journal of the Australian Society of Endodontology Inc·G S Heithersay
Apr 1, 1994·Australian Dental Journal·G S HeithersayP D Marin
Sep 6, 2008·Journal of Dentistry·Priscila de Oliveira da Silva PobbeRicardo Gariba Silva
May 20, 2003·International Endodontic Journal·T AttinA M Lennon
Dec 6, 2003·Australian Endodontic Journal : the Journal of the Australian Society of Endodontology Inc·Geoffrey S Heithersay, Gawler Chambers
May 16, 2007·Australian Dental Journal·K MaioloG S Heithersay
Jul 14, 2010·Microscopy Research and Technique·Ernando A FerreiraRicardo G Silva
Apr 25, 2006·Journal of Endodontics·Yuko NakamuraHirofumi Nishikawa
May 30, 2016·Journal of Endodontics·Elizabeth K LouGeoffrey S Heithersay
Mar 25, 2008·Journal of Endodontics·Gianluca PlotinoFrancesco Somma
Sep 15, 2001·Journal of Endodontics·Y KinomotoS Ebisu
Jun 8, 2012·Dental Materials Journal·Makiko SaitaMasaichi-Chang-il Lee
Mar 14, 2017·The Journal of Clinical Pediatric Dentistry·Himanshu Sharma, Divya S Sharma
Aug 7, 2014·The Journal of Contemporary Dental Practice·Renato de Toledo LeonardoAndrea Abi Rached Dantas
Jan 1, 2016·The Journal of Contemporary Dental Practice·Carlos Rocha Gomes TorresAlessandra Bühler Borges

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.